喜樂美語
  1. 1壽命；（東西的）使用年限、使用壽命

    A lifespan is how long something typically lasts from start to finish. For a person or animal, it is the usual number of years they live. For a machine, a battery, a building, or even a company, it is how long it keeps working before it wears out or dies. Doctors and scientists like it with numbers (the average lifespan of a cat). Product people use it the same way for phones and light bulbs. It is a calm, slightly textbook word; in chat you might just say how long they live. It looks at the whole stretch of time, not one special day, and it can be average (what is typical) or the span of one particular life.

From the word’s history

Compound of life + span.

由 life 和 span 合成。

Wiktionary

組成From life + span. A span is a stretch from one end to the other — of time, or of distance.

同家族的字

  • lifethe first half
  • spana stretch of time or distance
  • wingspansame span: the stretch from tip to tip

原始詞典資料2 筆記錄

以下是外部詞典記錄的用法，摘錄並精簡格式，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。

lifespannoun/ˈlaɪf.spæn/

  • 1

    biologynatural-sciencesThe length of time for which an organism lives.

    • Meronym: healthspan
    • Some clams have lifespans far longer than those of human beings.
  • 2

    The length of time for which something exists or is current, valid, or usable.

    • The virtual enterprise forum developed several "classical" management functions for which resources were available throughout its lifespan.
    • The reactor, located in the city of Fuqing city in China’s southeastern Fujian province, was designed to have a 60-year lifespan, with its core equipment domestically produced.

摘錄自 英文維基詞典 English Wiktionary，已精簡格式；依 CC BY-SA 4.0 授權使用，改動後的內容同樣以此授權提供。